Three weeks into flower and have ran out of room. I have only 12 inches of heigth I can raise my lights. Some plants have grown so wide some lower branches are one and a half feet long and many small branches lower should I prune them off are is it too late. My most importante is what should I do about height. p.s the two smallest plants I almost gave up on are flowering big time while the largest I two that I thought were the best have yet to flower.